Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Tkinter Articles
Page 42 of 46
How to disable a Combobox in Tkinter?
The Combobox widget is similar to the OptionMenu widget in Tkinter which gives the user a choice to select from the group of options. The Combobox widget allows users to select the option with an Entry widget that adds selected menu items from the dropdown list.We can Enable or Disable the options in the given Combobox widget by providing the state property. The state property forces to make a widget either active or disabled. To disable the Combobox widget, we have to set the state property as readonly or disabled.Example#Import the required Libraries from tkinter import * from tkinter import ttk ...
Read MoreHow to gray out (disable) a Tkinter Frame?
A Tkinter frame widget can contain a group of widgets. We can change the state of widgets in the frame by enabling or disabling the state of its underlying frame. To disable all the widgets inside that particular frame, we have to select all the children widgets that are lying inside that frame using winfor_children() and change the state using state=(‘disabled’ or ‘enable’) attribute.ExampleIn this example, we will create a button and an entry widget. Initially, the state of entry widget is disabled. But when we click the button, it will enable all the widgets in the frame.#Import the required Libraries ...
Read MoreHow to insert an image in a Tkinter canvas item?
Tkinter canvas is the most versatile widget in the Tkinter library. It is used to create images, shapes, arcs, animating objects, and many more other works. In order to work and process the images, Python supports Pillow Package or PIL. We can add images in the canvas as the items using the create_image(width, height, image_location, options) method. We can also specify where the image should open in the window by defining the Positional arguments such as anchor(options) property.Example#Import the required Libraries from tkinter import * from PIL import Image, ImageTk #Create an instance of tkinter frame win = Tk() ...
Read MoreHow to insert text at the beginning of the text box in Tkinter?
There are two types of Text editors that Tkinter supports -- the Entry widget and the Text widget. Tkinter text widgets are used to create the text editor where we can edit, add or delete the text whenever we need. We can create a text widget using the Text(parent) constructor. In order to insert a default text for the text widget, we can use the insert(INSERT, "text_to_insert") or insert("1.0", "text_to_insert") method after the text widget declaration.ExampleIn this example, we will insert the text at the beginning of the text box.#Import the required Libraries from tkinter import * #Create an instance ...
Read MoreHow to open PIL Image in Tkinter on Canvas?
Pillow package (or PIL) helps a lot to process and load images in Python projects. It is a free open-source library available in Python that adds support to load, process, and manipulate the images of different formats.In order to open the Image in Tkinter canvas, we have to first import the library using from PIL import Image, ImageTk command. To display the image in our Tkinter application, we can use the Canvas widget by specifying the image file in the create_image(x, y, image) method.Example#Import the required Libraries from tkinter import * from PIL import Image, ImageTk #Create an instance of ...
Read MoreHow to set the min and max height or width of a Frame in Tkinter?
In order to manage too many widgets in the window, we can use Frame widgets in Tkinter. In order to place the widgets inside the frame widget, we have to set the relative width and height of the frame. To configure the relative height and width of the frame, we have to configure it using the place(relx, rely) method.Now, let us create a frame and add a button to it.Example#import required libraries from tkinter import * from tkinter import ttk #Create an instance of Tkinter frame win= Tk() #Set the geometry of the window win.geometry("750x250") #Create a LabelFrame ...
Read MoreHow to stop Tkinter Frame from shrinking to fit its contents?
The sizing property of all the widgets in the Tkinter frame is by default set to the size of the widgets themselves. The frame container shrinks or grows automatically to fit the widgets inside it. To stop allowing the frame to shrink or grow the widget, we can use propagate(boolean) method with one of any pack or grid geometry manager. This method stops the frame from propagating the widgets to be resized.There are two general ways we can define the propagate property, pack_propagate (False) – If the Frame is defined using the Pack Geometry Manager.grid_propagate (False) – If the Frame is ...
Read MoreHow to Update the label of the Tkinter menubar item?
A Menubar contains a set of Menu Item in which each Menu Item is defined for different functionalities or operations. Let us suppose that we want to update the label of Menu Bar Items, then we can use entryconfigure(item_number, options..) method in a callback. To update the Menu Items in the Menu Bar, we can add label in the above method.ExampleLet us create an application with a list of Menu Items in the Menu Bar. When we will click a Particular Item, it will change the text in it.#Import the required Library from tkinter import * #Create an Instance of tkinter frame ...
Read MoreIs it possible to color a specific item in a Tkinter Listbox widget?
Tkinter ListBox widget is generally used for creating a list of items in the form of a list. The items can be chosen through the mouse buttons whenever we click a particular List Item. Each item in the ListBox is configured with the default color, which can be changed by defining the ‘background’ and ‘foreground’ color in itemconfig(options) method.ExampleIn this example, we will create a ListBox that contains a list of items. We will provide different colors to a few of the list items.#Import required libraries from tkinter import * #Create an instance of tkinter frame win= Tk() #Define ...
Read MoreHow to control automated window resizing in Tkinter?
The Tkinter window can be resized manually by defining the geometry ("width × height") method. We can automate or reset the window to its original form by passing an empty value to the geometry manager. Once the empty value is passed to the method, it will get resized automatically. In this example, we will create a Tkinter application that will display a Toplevel window (Popup window) with a defined size. When we press a RESET button, it will be resized again to its default size.Example#Import the library from tkinter import * from tkinter import ttk #Create an instance of ...
Read More